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Q. What is compound?
A compound is a substance which consists of two or more elements chemically combined. The elements in a compound aren't simply mingled together as they are in a mixture. In its place they are combined in a way such that the compound has properties that are different from those of the elements of which it is composed. Every compound is represented by a formula a combination of the symbols of the elements that make up the compounds. You may already recognize some chemical formulas such as H2O for water, NaCl for table salt and NH3 for ammonia.
what are the chemical properties of p-block elements?
what is the function of the charcoal in the purification of the 4-nitroanine 2.why is it not possible to obtain 2-and 4-nitroaniline by direct nitration of aniline (phenylamine)
When Nacl is dissolved in water the sodium ion becomes: (1) Oxidized (2) Reduced (3) Hydrolysed (4) Hydr
1
The configuration 1s 2 2s 2 2p 5 3s 1 shows: (1) Ground state of fluorine atom (2) Excited state of fluorine atom (3) Excited state of neon atom (4) Excited state
Glucose and fructose differ in their structer at 1st two carbon atom c1 and c2 only.In osazone formation tthere two carbon atoms take part in the reaction and during osazone format
Q. Explain about Roasting process? Roasting is the method of heating ores in the presence of excess air and involves oxidation. It is mainly applied to sulphide ores, which are
what is a crystal and why do crystals have regular faces?
This of the following substances has giant covalent structure: (1) Iodine crystal (2) Solid co 2 (3) Silica (4) White phosphorus A
Classification of polymers Classification lies on source of availability: They are categorized as (a) Natural polymers (b) Synthetic polymers
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